运用夹点技术在原油常减压装置换热网络中的优化改造  

Optimization and Renovation of heat exchanger network for crude oil distillation unit by pinch technology

作　　者：赵福真[1,2] ZHAO Fuzhen(South-Central Minzu University College of Chemistry and Materials Science,Wuhan 430074,China;South-Central Minzu University Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science,Wuhan 430074,China)

机构地区：[1]中南民族大学化学与材料科学学院 [2]中南民族大学催化转化与能源材料化学教育部重点实验室暨催化材料科学湖北省重点实验室,武汉430074

出　　处：《中南民族大学学报(自然科学版)》2025年第2期162-169,共8页Journal of South-Central Minzu University(Natural Science Edition)

基　　金：中南民族大学本科教学质量工程资助项目(KCSZX22014)。

摘　　要：运用换热网络夹点技术,针对某炼油厂常减压装置进行节能潜力分析和优化改造.结果表明:在利用相邻一套蒸馏装置的低温热的情况下,可以提高蒸馏二套换热终温7℃,即从278℃提升至285℃,同时增加自产蒸汽1.7 t·h^(-1).经过对换热器进行核算,和现有换热网络相比,节省加热炉1381 kW,增加自产蒸汽1184 kW,使用低温热循环水加热节能2502 kW,总节能效益296万元·a^(-1).Energy-saving potential analysis and optimizing reformation were carried out for the crude oil distillation unit in an oil refinery by pinch technology.The result indicated that by utilizing the low-temperature heat of the adjacent distillation unit,the final heat exchange temperature of the second distillation unit could be increased by 7℃,from 278℃to 285℃,while the amount of self-produced steam was increased by 1.7 tons per hour.Compared with the existing heat exchanger network,it saved 1381 kW for heating the furnace,increased 1184 kW for the self-production of steam,and further saved 2502 kW through the use of low-temperature circulation water.The total energy-savings accounted for 2.96 million yuan a year.

关 键 词：原油蒸馏装置 换热网络 夹点技术 优化 

分 类 号：TQ015[化学工程]